temp_store = 2来达成目的。请参阅https://www.sqlite.org/pragma.html#pragma_temp_store。
In some cases, this pragma can be disabled with the SQLITE_TEMP_STORE compile-time directive. Possible compile-time values include: ValueMeaning 0 Always use files, ignore pragma 1 Allow pragma, default to files 2 Allow pragma, default to memory 3 Always use memory, ignore pragma The default...